Teach

/bedrock:teach — External Source Ingestion into the Second Brain

Plugin Paths

Entity definitions and templates are in the plugin directory, not at the vault root. Use the "Base directory for this skill" provided at invocation to resolve paths:

• Entity definitions: <base_dir>/../../entities/
• Templates: <base_dir>/../../templates/{type}/_template.md
• Plugin CLAUDE.md: <base_dir>/../../CLAUDE.md (already injected automatically into context)

Where <base_dir> is the path provided in "Base directory for this skill".

Vault Resolution

Resolve which vault to teach. This skill can be invoked from any directory.

Step 1 — Parse --vault flag: Check if the input arguments include --vault <name>. If found, extract the vault name and remove it from the arguments (the remaining text is the source URL/path).

Step 2 — Resolve vault path:

1. If --vault <name> was provided: Read the vault registry at <base_dir>/../../vaults.json. Find the entry matching the name. If not found: error — "Vault <name> is not registered. Run /bedrock:vaults to see available vaults." If found: set VAULT_PATH to the entry's path value. Store the resolved vault name as VAULT_NAME.

2. If no --vault flag — CWD detection: Read <base_dir>/../../vaults.json. Check if the current working directory is inside any registered vault path (CWD starts with a registered vault's absolute path). If multiple match, use the longest path (most specific). If found: set VAULT_PATH to the matching vault's path. Store its name as VAULT_NAME.

3. If CWD detection fails — default vault: From the registry, find the vault with "default": true. If found: set VAULT_PATH to the default vault's path. Store its name as VAULT_NAME.

4. If no resolution: Error — "No vault resolved. Available vaults:" followed by the registry listing. "Use --vault <name> to specify, or run /bedrock:setup to register a vault."

Step 3 — Validate vault path:

test -d "<VAULT_PATH>" && echo "exists" || echo "missing"

If missing: error — "Vault path <VAULT_PATH> does not exist on disk. Run /bedrock:setup to re-register."

Step 4 — Read vault config:

cat <VAULT_PATH>/.bedrock/config.json 2>/dev/null

Extract language and other relevant fields for use in later phases.

From this point forward, ALL vault file operations use <VAULT_PATH> as the root.

• Graphify output: <VAULT_PATH>/graphify-out/
• When delegating to /bedrock:preserve, pass --vault <VAULT_NAME>

Overview

This skill receives an external source (URL or local path), fetches its content to a temporary directory, converts non-markdown files to markdown via docling, runs the /graphify extraction pipeline on the tmp content, and delegates entity persistence (plus graphify-output merge) to /bedrock:preserve.

You are a fetcher and orchestrator agent. Your job is to:

1. Ensure docling is installed (auto-install if missing)
2. Classify the input and fetch content to /tmp
3. Convert fetched files to markdown via docling (when applicable)
4. Invoke /graphify to extract a knowledge graph into a per-run temp directory
5. Delegate graph merge and entity writes to /bedrock:preserve
6. Clean up temporary files

You do NOT classify entities, create vault files, write to the vault directly, or merge graph state. All extraction is done by /graphify. All writes (including the graphify-output merge into the vault's cumulative graphify-out/) are done by /bedrock:preserve.

Follow the phases below in order, without skipping steps.

Phase 0 — Ensure docling is installed

Before any fetch or conversion, verify that the docling CLI is available. If missing, install it silently using the same fallback chain /bedrock:setup uses for graphify, emitting a single status line before proceeding.

if command -v docling >/dev/null 2>&1; then
  echo "Phase 0: docling already installed — proceeding."
else
  echo "Phase 0: docling not found — installing silently (one-time setup, may take a few minutes for model download)."
  # Step 1 — pipx (preferred, isolated)
  if command -v pipx >/dev/null 2>&1; then
    pipx install docling >/dev/null 2>&1 || true
  fi
  # Step 2 — pip (fallback if pipx unavailable or failed)
  if ! command -v docling >/dev/null 2>&1; then
    if command -v pip3 >/dev/null 2>&1; then
      pip3 install --user docling >/dev/null 2>&1 || true
    elif command -v pip >/dev/null 2>&1; then
      pip install --user docling >/dev/null 2>&1 || true
    fi
  fi
  # Final re-probe
  if ! command -v docling >/dev/null 2>&1; then
    echo "ERROR: docling install failed. Run /bedrock:setup to install it, or install manually: pipx install docling"
    exit 1
  fi
  echo "Phase 0: docling installed."
fi

Failure mode: If install fails (no pipx/pip, network outage, permission denied), abort the skill with the error above. Do NOT fetch or mutate anything. Direct the user to /bedrock:setup.

No user prompt: this step is silent — one status line on success, one error line on failure.

Phase 1 — Fetch

1.1 Classify the input

The user provides an argument. Classify it in the following priority order. URL-type routing is unchanged; local files no longer have an extension allowlist — any existing file is accepted, and Phase 1.5 decides whether to run docling on it.

If no argument was provided: ask the user "What source do you want to ingest? Provide a URL (Confluence, Google Docs, GitHub, or any HTTP(S) URL) or a local file path (any file type — docling will convert it to markdown if supported)."

1.2 Create temporary directory

All content is fetched to a temporary directory. This is the single input path for /graphify.

TEACH_TMP="/tmp/bedrock-teach-$(date +%s)"
mkdir -p "$TEACH_TMP"
echo "Temporary directory: $TEACH_TMP"

Store the path for use in subsequent phases.

1.3 Fetch content

Execute the fetch strategy for the detected type. All content lands in $TEACH_TMP/.

1.3.1 GitHub repository

For GitHub URLs (e.g.: https://github.com/acme-corp/billing-api):

1. Extract owner/repo and repo-name from the URL
2. Clone the repository (shallow):

   git clone --depth 1 <url> "$TEACH_TMP/<repo-name>"

3. GitHub MCP enrichment — call directly in main context (NOT via subagent — MCP permissions are not inherited):
   • mcp__plugin_github_github__get_file_contents → read the repo's README.md
   • mcp__plugin_github_github__list_commits → last 10 commits
   • mcp__plugin_github_github__list_pull_requests → last 5 PRs (state=all, sort=updated)
4. Compile MCP results into a single markdown file and save as $TEACH_TMP/<repo-name>/_github_metadata.md

Best-effort: If any MCP call fails, continue with what was obtained. Do NOT block ingestion.

1.3.2 Confluence

For Confluence URLs:

1. Read the internal skill at <base_dir>/../confluence-to-markdown/SKILL.md
2. Follow its instructions to parse the URL, choose layer (MCP → API → browser), and extract content
3. Save the returned Markdown content to $TEACH_TMP/<slug>.md
   • <slug> is derived from the page title or URL path (kebab-case, lowercase)

If all three layers (MCP, API, browser) are unavailable: warn the user with the guidance message from the fetcher module and abort this source type.

1.3.3 Google Docs / Sheets

For Google Docs or Sheets URLs:

1. Read the internal skill at <base_dir>/../gdoc-to-markdown/SKILL.md
2. Follow its instructions to parse the URL, detect document type (Doc vs Sheet), choose layer (MCP → API/public export → browser), and extract content
3. The fetcher saves output to /tmp/gdoc_{docId}.md or /tmp/gsheet_{docId}.md
4. Copy the output file to $TEACH_TMP/<slug>.md
   • <slug> is derived from the document title or URL path (kebab-case, lowercase)

If all three layers (MCP, API/public export, browser) are unavailable: warn the user with the guidance message from the fetcher module and abort this source type.

1.3.4 Remote URL (generic)

For any other HTTP/HTTPS URL, download the raw bytes so docling can operate on binary formats (PDF, DOCX, PPTX, XLSX, images, etc.) that WebFetch cannot return faithfully as text:

1. Try curl first for true binary fidelity:

   curl -fsSL -o "$TEACH_TMP/<filename-derived-from-url>" "<url>"

   • <filename-derived-from-url> preserves the URL's basename (including extension) when available; fall back to <slug>.bin if no extension is present.
2. If curl is unavailable or the URL returns an HTML page (by Content-Type), fall back to WebFetch and save the response text as $TEACH_TMP/<slug>.md.

If both attempts fail: warn "Could not fetch URL. Check if the URL is accessible." and abort.

Phase 1.5 decides whether the downloaded file goes through docling, based on the file extension.

1.3.5 Local file (any format)

For local files:

1. Verify the file exists using Read (or test -f).
2. Copy to tmp preserving the filename:

   cp "<local-path>" "$TEACH_TMP/"

No extension-based filtering — any existing file is accepted. Phase 1.5 decides conversion.

1.3.6 Local directory

For local directories:

1. Verify the directory exists
2. Copy to tmp (excluding heavy directories):

   rsync -a --exclude='.git' --exclude='node_modules' --exclude='bin' --exclude='obj' \
     --exclude='.vs' --exclude='TestResults' --exclude='packages' \
     "<local-dir>/" "$TEACH_TMP/$(basename <local-dir>)/"

1.4 Phase 1 result

At the end of this phase, you should have:

• $TEACH_TMP: directory with all fetched content (local path for graphify)
• source_url: original URL or file path provided by the user
• source_type: confluence, gdoc, github-repo, remote-binary, local-file, local-dir, or manual

Report: "Phase 1 complete: Content fetched to $TEACH_TMP. Source type: <source_type>."

Phase 1.5 — Docling Conversion

For every fetched file in $TEACH_TMP that is not a GitHub repo and is not already markdown output from Confluence/GDoc fetchers, check whether docling supports the file type and, if so, convert it to markdown in place. GitHub repos (source_type == "github-repo") skip this phase entirely and flow straight to graphify.

1.5.1 Docling-supported extensions

Docling supports conversion for the following file types (as of the version installed by Phase 0 / /bedrock:setup). Compare by lowercase file extension:

.pdf .docx .pptx .xlsx
.html .htm
.md .adoc
.png .jpg .jpeg .tiff .bmp
.epub

• .md is listed here because docling passes markdown through largely unchanged. In practice, running docling on .md is a no-op we skip to save time — treat .md as already-markdown.
• .txt and .csv are NOT in docling's supported list (they are plain-text already); skip docling and pass through raw.